Protocolswift-nio 2.72.0NIOCore
NIOAsyncSequenceProducerBackPressureStrategy
A protocol for the back-pressure strategy of the NIOAsyncSequenceProducer.
- iOS
- 13+
- macOS
- 10.15+
- tvOS
- 13+
- watchOS
- 6+
protocol NIOAsyncSequenceProducerBackPressureStrategy : SendableA back-pressure strategy is invoked when new elements are yielded to the sequence or when a AsyncIterator requested the next value. The responsibility of the strategy is to determine whether more elements need to be produced .
If more elements need to be produced, either the produceMore method will be called or a YieldResult will be returned that indicates to produce more.
Supertypes
protocol SendableA type whose values can safely be passed across concurrency domains by copying.
Requirements
Instance members
func didConsume(bufferDepth: Int) -> Bool This method is called after the consumer consumed an element. More specifically this method is called after
nextwas called on an iterator of theNIOAsyncSequenceProducer.func didYield(bufferDepth: Int) -> Bool This method is called after new elements were yielded by the producer to the source.
See also
struct NIOAsyncSequenceProducer<Element, Strategy, Delegate>This is an
AsyncSequencethat supports a unicastAsyncIterator.struct NIOThrowingAsyncSequenceProducer<Element, Failure, Strategy, Delegate>This is an
AsyncSequencethat supports a unicastAsyncIterator.enum NIOAsyncSequenceProducerBackPressureStrategiesprotocol NIOAsyncSequenceProducerDelegateThe delegate of
NIOAsyncSequenceProducer.struct NIOAsyncWriter<Element, Delegate>A
NIOAsyncWriteris a type used to bridge elements from the Swift Concurrency domain into a synchronous world. TheTasks that are yielding to theNIOAsyncWriterare the producers. Whereas theNIOAsyncWriterSinkDelegateis the consumer.protocol NIOAsyncWriterSinkDelegateThe delegate of the
NIOAsyncWriter. It is the consumer of the yielded writes to theNIOAsyncWriter. Furthermore, the delegate gets informed when theNIOAsyncWriterterminated.